Window construction



April 21, 1953 Filed Sept. 10, 1948 ITO R. W. MCLAUGHLIN ETAL j WINDOW CONSTRUCTION 5 Sheets-Sheet 1 -IEZ April 21, 1953 R. w. MCLAUGHLIN ETAL 2,635,719

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WINDOW CONSTRUCTION Filed sept. 1o, 194e 5 Sheets'Slgeet, 4

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Patented Apr. 21, 1953 WINDOW CONSTRUCTION Robert W. McLaughlin, Greenwich,.Conn., and Guy F. Kotrbaty, Bronxville, N. Y.

Application September 10, 1948, Serial No. 48,652

6 Claims.

This invention has to do with a metal Window construction. This window construction is particularly adapted for use with construction Wall units of the type disclosed in our copending application Serial No. 748,188; led May l5, 1947.

The Window construction of the invention is made of comparatively simple parts which can be produced by the cold roll forming process as Well as by other metal forming processes, such as metal extrusion or press processes.

The Window unit is single-hung and preferably spring-balanced. Storage space for the entire window unit can be provided in the wall units so as to give a full sash opening. A screen can be attached to one end of the window unit so as to be drawn into and span the Window opening asv the window is opened and be stored automatically within the Wall unit when the Window is closed.

The trim elements for the Window opening serve as the frame for the sash and provide a sliding track for the sash as well as a side seal for the screen when it is drawn into the Window opening. Part of the trim elements are adjustable to permit adjustment of the sliding friction on the sash. The sash is provided with specially shaped anges which cooperate with the outthey will not extend to any substantial extent a into the Window opening, thus providing the maximum Window space in the Window opening.

The trim elements add bearing strength and rigidity to the stud beams ofthe construction Wall unit and as a result the Wall units with windows are actually stronger structurally than non- Window Wall units. This eliminates any restriction on the number of adjoining Window Wall units that can be used since the entire wall can be of such units Without any sacrice in structural strength. y

A preferred form of our window construction unit is illustrated in the accompanying drawings.

Fig. 1 is a view in perspective from the exterior of the window construction installed in a wall unit;

Fig. 2 is a perspective view from the interior ofy the sash and part of the screen;

Fig. 3 shows an optional detail of the screen,- an edge binding to protect the edge and add rigidity tothe screen;

Figs. 4 and 5 are vertical cross-sections through the Window construction and part of the wall unit above and below the Window construction.v Fig.

2 4 shows the' sash in closed position, and Fig. 5'- shows the sash in'partly opened position;

Fig. 6 is a horizontal .cross-section through .the Window construction along line 6S of Fig. 4. A partV of adjoining non-Window Wall units are shown; and

Figs. 7 to 17 inclusive show in perspective the outline of the various elements forming the' sash and trim elements, except that Fig. 10 shows the outline of the portion of the stud beam bordering the window opening.

In the drawings, our Window constructionY is shown applied to a wall construction unit of the` typeshcwn in our copending application Serial No. 748,188.

A portion of these wall construction units areV shown at the top and bottom of Fig. 6. The-WallV unit |00 consists of a metal channel with awall section |02, backed preferably by insulation lill, and stud beams |04. The aligned. Wallsections |02 of adjoining units form the outside wall surface, and the inner wall surface is'forrned by the snap-on panel unitsl |06 which may be provided with insulation, as at |01.

To make provision for the installation: of our Window construction, the Wall section |02 is provided with an opening (see Figs. 4 and 5) extending a portion of its length and a substantial portion of its width, leaving axnarrow. pori tion [02a of the Wall section along the vertical" edges of the opening (see center building unit in Fig. 6 and see also Fig. 10). The panel unit' |06 is entirely eliminated from thepart in alignment with the opening.

The portions of the stud beams exposed by the opening have generally the cross-sectional shape of a channel of which the part |04 con-- stitutes the web and the part |0211 one of the anges. These exposed portions of the stud beams are covered by trim elements ||0 and |30 (see Figs. 6, 11 and 13). The outer trim element or reveal |30 has a bent flange |32 which laps" the narrow portion |0211 and is attached thereto, preferably in a permanent manner as by Welding. The inner vertical edge portion |34 of reveal |30 is indented for purposes to be explained. The inner trim element ||0 (see Figs. 6 and 11) has a conig'uration to fit the inner end of the stud beam 04 and extends towards the indented edge of the outer trim element |30, leaving a vertical slot betweenk their edges which acts as a sliding track for the sash and screen. The edge I|4 is preferably bent inward to provide a flat vertical sliding surface for one edge of the track. The inner trim elements ||0 areattached to the bent edges of the stud beam |04 at intervals along their lengths by means of screws ||2, which permits adjustment of the sliding friction of the track on the sash and removal of the trim element when it is desired to remove the sash.

The sash frame 20 has vertical edges |20 which have the cross-sectional shape of nested Ls (see Fig. 12), the base of the Ls mating with the indented portion |34 of the reveal or outer trim elemen |30 (see Figs. 6, 12 and 13). The upright portion of the larger L |22 engages in the track between the vertical edges ||4 and |34 of the vertical trim elements. It will be noted that the insert portion |34 of the outer trim element |30 is about the width of the base of the inner L |24 so that this inset portion provides an additional sliding and aligning surface for the sash and, in addition, the shoulder |32 formed by the inset shields the vertical edge of the sash. The free end of the base of the inner L |24 is turned inward toward the `window opening. This bent end may slidingly engage the shoulder |32 so as to assist in keeping the sash in accurate alignment. This bent-in edge also forms an inner shelf to receive mastic 24 for holding the plane 22 in the sash. The overlapping engagement of the vertical sash edge |20 with the indented edge of the vertical trim element |30 presents a series of barriers which provides a weather-tight sliding joint.Y These parts engage in such a manner that they can be disengaged, on the'removal of the inner trim elements, by merely sliding the sash inward.

The lintel of the window opening is partly covered by the channel-shaped head plates 10 and 80 (see Figs. 4, 5, '1 and 8) which are spaced apart a sufficient distance to allow the sash to pass between them. The outer plate 80 has a depending drip cap 82 which may extend at each end beyond head plate 80 so as tovspan the entire building unit. The head-plate 10 extends across the entire width of the wall construction unit and the ends of the head plate 10 are cut away so as to nest around and t against the stud beam |04. The inner flange of the head plate 10 is shown (see Fig. 4) -as overlapping the bottom edge of the snap-on panel |00 and may be attached thereto in a permanent manner, as by welding. When it is desired to remove the sash from the window opening, the head plate can be moved out of the way by removing the snapon cover |06 from the building unit.v

The top edge 90 of the sash frame (see Figs. 4., and 9) is somewhat similar in cross-sectional shape to that of the sash side edges |20. The baseof the inner L 94 has a bent edge forming a receiving shelf for mastic. The free edge of the base of outer L 92 has a reversely bent edge forming an upwardly extending grooved capI 00 disposed in line with the inner ange 84 of theV outer head plate 80 so that when the sash is in closed position the grooved cap mates with flange 84 -to provide a weather-tight seal.

The "window sill is partly closed -by the sill plates |40 and |60 (see Figs. 4, 5, land 16). As in the case of the head plates, the sill plates are spaced apart to provide a slot or opening in -the sill to give access to the storage space in the wall unit covered by the sill plates.

The inner sill plate |60 is generally channelshaped but its outer iiange |62 is bent inwardly to move the rough metal edge out of the path of the screen, to be described. The plate |60, as in the case of the inner head plate, extends across the entire width of the wall unit |00 and the ends of the plate |60 are cut away so as to t around the vertical edges of the stud beam |04. Likewise, the inner iiange may be attached to the edge of the snap-on panel |06 and the sill plate |60 removed by removal of the snap-on panel from the building unit.

The outer sill plate |40 is pan-shaped with an inner upwardly extending ange or dam |42, and side flanges |44 shaped so as to engage the bottom sides of the outer vertical trim plates |30. The outer edge is bent outwardly and downwardly to form a drip cap |46. This drip cap may extend beyond the sill plate |40 at each end so as to span the entire wall unit.

The bottom edge |50 of the sash (see Figs. 15, and 4 and 5) has a ledge portion |54 to hold the pane and retaining mastic, a grooved cap portion |50 and an inwardly extending handle portion |52. The grooved cap portion |56 is in alignment with the dam or upwardly extending flange |42 on the outer sill plate so that when the window is closed (see Fig. 4) these two parts mate to form a weather-tight joint.

A screen |12 is clamped to the bottom edge |50 of the sash by means of clamping plate |10, which may be attached by screws |1|, for example (see Figs. 1'1, 2, 4 and 5). 'Ihe bottom edge of the clamping plate |10 is curved so as to offset the plane of the depending portion of screen |12 from the plane of attachment and to bring it in registry with the sliding track formed between the vertical trim elements I0 and |30. The main body of the screen (see Fig. 2) is of approximately the width of the sash so as to span the window opening and extend within said sliding tracks when the window is raised. The outside upper edges of the screenV beyond the clamping plate |10 are cut away because this portion of The-edges of the screen will slide snugly in said sliding tracks, thus providing a good insect andvermin-proof seal. As the window is raised, the'screen is-automatically raised to span the window opening, and when the window is closed the screen is automatically lowered into its protected storage position within the wall unit |00. This eliminates wear and tear on the screen due to unnecessary exposure to the elements whichv occurs when xed screens are used and also eliminates the need for removing the screens for storage during the winter months since they have their own storage space in situ.

Instead of the conventional weight balance suspension, we prefer to hang the sash by a spring. Ears |26 are placed toward the bottom of the Side edges |20 of the sash. The ends of longrcoiled springs |28 are attached to each ear, and the other ends of the springs are attached to the stud beams |04, in some convenient man-` ner, a substantial distance above the window opening. The force exerted by the spring will counterbalance the weight of the window and tend to urge the window in an upward direction..

The friction exerted by the track surfaces formed by the vertical trim elements ||0 and |30 will prevent movement of the window under the urging of the springs. The extent of this friction can be adjusted, as heretofore explained, by loosening or tightening the screws H2 (see Fig. 6).

The ears |26 can be formed by bending up the bottom edge of the larger L |22 of the side sash as shown in Fig. 2. The ears 26 should be placed so as to clear ilanges |44 of the outside sill plate when the window is closed.

We claim:

1. In a building structure with a window opening, a metal window construction comprising two vertical trim plates on each side of the window opening, the adjacent vertical edges of said trim plates being spaced apart to form a narrow vertical slot, a sash frame in which each vertical edge has the cross-sectional shape of nested Ls with the uprights of the Ls disposed substantially in the plane of the sash and with the bases of the Ls extending outwardly substantially at right'l angles to the plane of the sash, the bases of said Ls having free ends to receive between them the inner edge of one of the trim plates and providing two flat surfaces in sliding engagement with the trim plate to take care of endwise thrust in either direction and the upright of the larger L engaging in said slot to take care of transverse thrust.

2. In a building structure with a window opening, the window construction as claimed in claim 1, in which the inner vertical edge of each outer trim plate is inset to provide a shoulder which shields the adjoining Vertical edge of the sash and serves as a sliding and aligning surface for the free end of the base of the inner L.

3. In a building structure with a window opening, the window construction as claimed in claim 2, in which the free end of the base of the inner L has a ange extending toward the window opening and abutting the shoulder on the inner edge of the outer trim plate.

4. In a building structure with a window opening, the window construction as claimed in claim 3, in which the edge of the inner trim plate forming one wall of the slot is bent laterally to 6 provide a i'lat vertical sliding surface on one edge of the slot.

5. In a building structure with a window opening, the window construction as claimed in claim 1, in which each of the inner trim plates are removably mounted to permit removal of the sash frame on removal of the inner trim plates.

6. In a building structure with a window, the window construction as claimed in claim 1, in which each of the inner trim plates are adjustably mounted to permit adjustment of the width of the slot and thus of the frictional engagement of the inner and outer trim elements with the vertical edges of the sash frame.

ROBERT W. MCLAUGHLIN. GUY F. KOTRBATY.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date Re. 18,026 Campbell Apr. 7, 1931 696,783 Wright Apr. 1, 1902 729,885 McSherry June 2, 1903 794,024 Keighley July 4, 1905 818,969 Keighley Apr. 24, 1906 1,028,392 Ruth June 4, 1912 1,203,973 Bunnell Nov. 7, 1916 1,375,139 Elliott Apr. 19, 1921 1,606,073 Hebbard Nov. 9, 1926 1,636,807 Campbell July 26, 1927 1,646,006 Brogden Oct. 18, 1927 1,676,193 Lee July 3, 1928 1,727,470 Lancaster Sept. 10, 1929 1,768,740 Brogden July 1, 1930 1,922,010 Axe Aug. 8, 1933 1,972,539 Simpson Sept. 4, 1934 1,980,313 Axe Nov. 13, 1934 2,113,959 Campbell Apr. 12, 1938 2,116,754 Edwards et al May 10, 1938 FOREIGN PATENTS Number Country Date 738,407 France Oct. 17, 1932 

